Improvement in plows



S. H. BOGENRIEP 86 W. PATTISON. Plow.

No. 20l,l5-3. Patented March '2, 1878.

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N.PETERS, PHOTO UYTHOGRAPHER. WASHINGTON, D. C.- I

UNITED STATES PATENT OFFICE.

9 SAMUEL H. BOGENRIEF AND WILLIAM PATTISON, OF ST. CLOUD, MINNESOTA.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 201,153, dated March12, 1878; application filed December 6, 1877.

To all whom it may concern:

Be it known:thatwe, SAMUEL H. BOGENRIEF and WILLIAM PATTISON, both ofSt. Cloud, in the county of Stearns and State of Minnesota, haveinvented certain new and useful Improvements in Plows, which inventionis fully set forth in the following specification and accompanyingdrawings, in which- Figure 1 is a side elevation, Fig. 2 a plan view,and Fig. 3 a front elevation, of the moldboard, share, and land-side ofa plow embodying our invention.

This invention consists informing the shares of plows with their outeror back ends parallel with the land-side, and on a linewith the outeredge of the mold-board, so that all the earth that is cut by the sharewill be turned over by the mold-board, as hereinafter specified.

In the ordinary plow the outer end A of the share B is made at rightangles tothe front or cutting edge 0, so that an angular line is formedby the end of the share and the outer or back edge of the mold-board D.(See dotted lines in Figs. 1 and 2.)

Our improvement consists in forming the outer endA parallel with theland-side E, and so joining the mold-board D thereto as to form acontinuous straight line the whole width of the share and a shortdistance up the moldboard, from which point it is continued in a curvedline to the upper point of the moldboard, in the usual manner, from a tob.

By this arrangement we accomplish several very important results notobtained by the common method: First, all the soil cut by the share isturned over by the mold-board, while in the old style all that portionleft by the angular line remains in the furrow; second, the

friction is very much reduced, as the continuous line of the share andmold-board renders the passage of the plow through the soil much easier;third, it is cheaper to manufacture, as the shares may be cut fromsheet-steel with less waste than in the old method.

We are aware that mold-boards have been made with a space cut away inthe center, and having the heel all the way up parallel with the frontcutting-edge; but it is in no sense a share.

We are also aware that ditching-plows have been made with the heelnearly parallel, and with fixed cutters, which, while they cut, alsoproduce great friction.

We do not wish to claim any such construction of plow, our inventionrelating solely to shares adapted to be applied to plows designed toreceive a share; and, therefore,

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

As an improved article of manufacture, the plowshare D, the line ofwhose back edge or end A is parallel with the land-side E, and designedas described, so that it may be joined to the mold-board, and form, whenso joined, a continuous line from the lower back point of the share tothe upper back point I) of the mold-board.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

SAML. H. BOG'ENRIEF. WILLIAM PATTISON. Witnesses:

L. A. EVANS,

O. F. MACDONALD.

